3440399 has 2 divisors, whose sum is σ = 3440400. Its totient is φ = 3440398.

The previous prime is 3440377. The next prime is 3440413. The reversal of 3440399 is 9930443.

It is a strong prime.

It is an emirp because it is prime and its reverse (9930443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3440399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720199 + 1720200.

It is an arithmetic number, because the mean of its divisors is an integer number (1720200).

Almost surely, 2^3440399 is an apocalyptic number.

3440399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440399 is an equidigital number, since it uses as much as digits as its factorization.

3440399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3440399 is about 1854.8312591716. The cubic root of 3440399 is about 150.9626824731.

The spelling of 3440399 in words is "three million, four hundred forty thousand, three hundred ninety-nine".